US6619583B2 - Device for contact-free guidance of a web material over a surface - Google Patents

Device for contact-free guidance of a web material over a surface Download PDF

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Publication number
US6619583B2
US6619583B2 US09/897,282 US89728201A US6619583B2 US 6619583 B2 US6619583 B2 US 6619583B2 US 89728201 A US89728201 A US 89728201A US 6619583 B2 US6619583 B2 US 6619583B2
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United States
Prior art keywords
web
surface element
web material
closure element
crossmember
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Expired - Fee Related
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US09/897,282
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English (en)
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US20020017589A1 (en
Inventor
Herve Henry
Thierry Thevenin
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Goss International Montataire SA
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Heidelberger Druckmaschinen AG
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Publication of US20020017589A1 publication Critical patent/US20020017589A1/en
Assigned to HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT reassignment HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HENRY, HERVE, THEVENIN, THIERRY
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Publication of US6619583B2 publication Critical patent/US6619583B2/en
Assigned to U.S. BANK, N.A. reassignment U.S. BANK, N.A. SECURITY AGREEMENT Assignors: HEIDELBERG WEB SYSTEMS, INC., A DELAWARE CORPORATION
Assigned to HEIDELBERG WEB SYSTEMS S.A. reassignment HEIDELBERG WEB SYSTEMS S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEIDELBERGER DRUCKMASCHINEN AG
Assigned to GOSS INTERNATIONAL MONTATAIRE S.A. reassignment GOSS INTERNATIONAL MONTATAIRE S.A. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: HEIDELBERG WEB SYSTEMS S.A.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/22—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
    • B65H45/221—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement incorporating folding triangles
    • B65H45/223—Details of folding triangles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1132—Multiple nozzles arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/20—Volume; Volume flow

Definitions

  • the invention relates to a device for contact-free guidance of a web-like material over a surface, such as a folder former plate, for example, the web-like material being foldable with a first longitudinal fold which is formed therein as it passes the folder former plate.
  • the published German Patent Document DE 199 15 386 A1 is concerned with a device for avoiding smearing during the transportation of a printed material web, which may be printed on one or both sides thereof.
  • This publication describes a device by which the smearing of ink on a printed web is avoided by increasing the viscosity of the ink printed onto the web. The increase in viscosity takes place following a first operation for cooling the web.
  • the cooling device that is used may include rollers which are arranged within a rotary printing machine and are cooled by a coolant. On the other hand, the cooling may be effected by air cooling a closed section of the rotary printing machine or by feeding a cooling gas onto the surface of the printed material web.
  • U.S. Pat. No. 5,799,616 discloses a folder former nose which may be fastened on the folder former of a rotary printing machine.
  • the folder former nose includes a base plate wherein a triangular plate is positioned.
  • a cover plate is displaceably disposed on the triangular plate.
  • openings which are formed by cutouts in the border region of the cover plate.
  • a fluid flow which prevents the web material running off on the folder former nose from coming into contact with the surface of the folder former nose, to pass out through the openings, in the border region of the folder former nose.
  • U.S. Pat. No. 5,947,411 and the published European Patent Document EP 0 945 385 A2 disclose a first longitudinal folding device for use in a web-fed rotary printing machine, wherein it is possible to regulate the fluid volume flow acting upon the surfaces of the folder former plate.
  • the folder former plate is configured with two bases. Fluid volume flow outlets which are located above one another, and are distributed over the length of the folder former plate, are arranged in the base plate located beneath the folder former plate, whereon the web-like material runs off.
  • Wedge-shaped adjusting elements are accommodated in the cavity between the folder former plate and the plate wherein the air-outlet openings are formed, the adjusting elements either increasing or reducing the size of the outlet openings for the fluid volume flow onto the upper side of the folder former plate. It is thus possible to adjust, on the upper side of the folder former plate, the volume flow passing through the correspondingly adjusted opening cross sections.
  • the openings, which are bounded via the wedge-shaped displaceable adjusting elements, are formed, in the transition region of the folder former plates, in circular former bars, over the circumferential surface of which there exits the fluid volume flow passing out of the openings, contact of the web-like material both with the folder former bars and with the folder former plate thus being avoided.
  • the published Japanese Patent Document JP-H-7-47415 discloses a triangular folder former plate on a folder of a rotary printing machine.
  • the surface of the folder former is provided with a multiplicity of openings. Positioned in these openings are spherical elements which are enclosed by corresponding holders or sockets.
  • the spherical elements of the folder former plate are subjected to the action of individual spring elements positioned in the holders. A volume flow of a fluid is introduced into each of the holders, because each of the holders is provided with a compressed-air connection. Depending upon the movement of the spherical element accommodated in the respective holder, a volume flow onto the surface of the folder former plate is released or blocked.
  • a device for contact-free guidance of a web material over a surface element whereon a first longitudinal fold is formed in the web material comprising respective crossmembers disposed at the top and at the bottom of the surface elements, the surface element decreasing in width continuously from the top crossmember to the bottom crossmember, and being defined by boundary elements, the surface element and the boundary elements having a gaseous medium provided therein, an adjustable closure element for varying, in accordance with a respective format of the web material guided over the surface, a flow of a volume of the gaseous medium from an air cushion formed beneath the web material.
  • the surface member has a surface disposed in a travel direction of the web material, the surface being formed with a plurality of openings disposed behind one another in the travel direction of the web material.
  • the openings respectively, have a longitudinal extent exceeding, by a multiple, a transverse extent thereof in the surface.
  • the closure element faces towards at least one of the openings formed in the surface, the closure element being engageable with and being disengageable from the rear side of the surface.
  • the closure element has a width exceeding the width of the openings formed in the surface.
  • the closure element is mounted at a top end thereof so as to be pivotable about a pin.
  • the closure element extends, in the travel direction of the web material, between the top and the bottom crossmembers of a longitudinal folding device.
  • the closure element is manually adjustable from a position wherein it has been engaged with the surface, into a position wherein it is disengaged from the surface, and the reverse.
  • the closure element is adjustable via an actuating drive acting upon spindle elements, from a position wherein it has been engaged with the surface, into a position wherein it is disengaged from the surface, and the reverse.
  • a threaded section formed on one of the spindle elements extends through an actuating lever for a cam, and has stops thereon for limiting vertical movement of the actuating lever.
  • the closure element is pivotably mounted on the top crossmember.
  • the surface element is a former plate, and the closure element is engageable more firmly with the first opening in the surface, as viewed in the web-travel direction, than with the adjacent openings in the former plate, as viewed in the web travel direction.
  • the closure element is pivotably mounted on the top crossmember and, on the bottom crossmember, is mounted on an adjustable pivoting cam supported by a carrier.
  • the actuating lever for the cam serves for executing a vertical movement, as viewed in the web travel direction, for causing the cam, which is pivotable about an actuating pin, to execute a retraction and an extension movement, respectively.
  • an angle-bar superstructure having a device for forming a first longitudinal fold on one of a material web and material-web lengths, respectively, printed on at least one side thereof, which are guided in a contact-free manner over a surface element continuously decreasing in width from a top crossmember to a bottom crossmember, and being defined by boundary elements, the surface element and the boundary elements having openings for gaseous medium provided therein, comprising an adjustable closure element for varying, in accordance with a respective format of the web material guided over the surface, a flow of a volume of the gaseous medium from an air cushion formed beneath the web material.
  • a web-processing rotary printing machine having a device for forming a first longitudinal fold on one of a material web and material-web lengths, respectively, printed on at least one side thereof, which are guided in a contact-free manner over a surface element continuously decreasing in width from a top crossmember to a bottom crossmember, and being defined by boundary elements, the surface element and the boundary elements having openings for gaseous medium provided therein, comprising an adjustable closure element for varying, in accordance with a respective format of the web material guided over the surface, a flow of a volume of the gaseous medium from an air cushion formed beneath the web material.
  • the advantages of the proposed device according to the invention are, in particular, that the air cushion produced, via the air outlet, from the air volume emerging from the surface-bounding elements can be varied on the outflow side simply via a very slight adjusting movement of a sheet-like element.
  • This makes it possible for the air cushion emerging beneath the material web, which is to be guided, to be easily influenced without having any effect upon the compressed-air source.
  • an air cushion which covers the width of the guide surface, i.e., of the former plate is formed in the case of a maximum web width, the air cushion being fed by the air volume flows emerging from the former bars.
  • the closure element which may be pivotable about a pin, acts as a throttling or restrictor element which throttles or restricts the flows of volumes of air flowing out of the air cushion, depending upon the extent to which it has been engaged with the rear side of the guide surface.
  • a number of openings located behind one another, as viewed seen in the travel direction of the web-like material, are formed in the surface, for example, the top side of a former plate.
  • the longitudinal extent of these openings exceeds by a multiple the transverse extent thereof in the surface above which the air cushion is formed beneath the web material.
  • the closure element which is directed towards at least one of the slot-like openings, can be engaged with the former-plate side and withdrawn or disengaged therefrom.
  • the closure element exceeds to a considerable extent the width of the former-plate openings assigned thereto.
  • the configuration of the extent of overlap between the closure element and the material of the former plate extending alongside the slot-like opening makes it possible to increase further the restricting or throttling action which can be achieved as the closure element is engaged with the rear side of the former plate.
  • the gaseous-medium volume flowing out of the air cushion can be regulated extremely accurately.
  • the closure element With respect to the longitudinal extent of the closure element, at the top end thereof in the web travel direction, it is advantageously disposed so that it can be pivoted about a pin on the rear side of a first longitudinal folding device.
  • the closure element may advantageously extend over the entire length thereof, as viewed in the web travel direction, between the top crossmember of a first longitudinal folding device and a bottom crossmember. Assurance is thereby provided that influencing of the air cushion, i.e., the fluid-volume flows emerging from the air cushion, is provided by advancing or withdrawing the closure element, which extends in a web travel direction, it being possible for these movements to be performed by motor or manually.
  • closure element that can be actuated via spindle drives, for example, to be adjusted to the web-material width, respectively, which is to be processed, either via a handwheel or via an electric or pneumatic high-speed drive or the like, for example, even in the context of pre-setting when a new print job is being newly set up.
  • the latter may be actuated via spindle elements which can be moved at right angles to one another, it being possible for one of the spindle elements to be provided with a threaded section extending through an actuating lever whereon a cam is disposed for producing the advancement or withdrawal, i.e., the engagement and disengagement movement of the closure element.
  • a cam is disposed for producing the advancement or withdrawal, i.e., the engagement and disengagement movement of the closure element.
  • the cam i.e. advancement of the closure element onto the rear side of the surface of the former plate.
  • the restricting cross sections formed between the rear side of the former-plate material and the front side of the closure element are of larger or smaller dimensions.
  • closure element Due to the advantageous mounting of the closure element extending in the web travel direction, on the top crossmember of a first longitudinal folding device, it is possible, when the closure element is actuated, i.e. engaged with or advanced onto the rear side of the former-plate material, to achieve more pronounced engagement or advancement of the closure element, by way of the top region thereof, onto the first slot-like opening of the former plate, i.e., to achieve a greater restricting action in the wider region of the former plate.
  • This may advantageously be achieved in that, when actuated, the closure element describes a rotary movement with respect to the pivot pin thereof.
  • the device proposed in accordance with the invention for the contact-free guidance of web-like material over a surface may advantageously be used in web-processing rotary printing machines in the graphics industry. It is unimportant here whether the angle-bar superstructures of such web-processing rotary printing machines, whether for jobbing or for newspapers, process material webs which are printed on both sides or on one side or whether, in the angle-bar superstructures of such rotary printing machines, individual material webs are divided up into lengths of web which, after turning or rotation, are brought together again and then run into a folding module.
  • FIG. 1 is a rear elevational view of a first longitudinal folding device for a rotary printing machine, the folding device having a closure element that is adjustable via spindle-like elements;
  • FIG. 2 is a side elevational view of FIG. 1, showing the first longitudinal folding device for a rotary printing machine, with the closure element in an engaged or advanced position thereof;
  • FIG. 3 is a diagrammatic view from above of an air cushion forming beneath the web material, and bounded on the underside thereof by the front side of a folder former plate, and also shown is the orientation of air-outlet openings in boundaries of the folder former plate;
  • FIG. 4 is an enlarged fragmentary view of FIG. 2 showing an actuating device including a cam for actuating the closure element, the cam being illustrated in both an extended position and a retracted position thereof; and
  • FIG. 5 is a front elevational view of FIG. 1 showing the first longitudinal folding device in a rotary printing machine, with outlines of maximum and minimum formats of the web-like material to be processed thereon.
  • a first longitudinal folding device 31 which may be provided, for example, on a web-processing rotary printing machine 9 .
  • a folder former plate 2 which tapers continuously in width from a top crossmember 5 to a bottom crossmember 19 , is bounded by two former bars 1 which are subjected to the action of a gaseous medium, for example compressed air.
  • the former plate 2 of the first longitudinal folding device 31 is formed with slot-like openings 11 , of which in this case, for example, three are located behind one another, passing through the center of the longitudinal folding device 31 .
  • the openings 11 are formed as narrow slots, of which the longitudinal extent exceeds by a multiple the extent of the width thereof.
  • a closure element 3 is assigned to the two top slot-like openings 11 .
  • the closure element 3 overlaps the two openings 11 formed in the former plate 2 , the openings 11 being disposed above one another, as viewed in the web travel direction 32 , and is mounted so as to be rotatable about a pivot pin 13 .
  • An actuating lever 16 is accommodated at the bottom end of a vertically extending spindle section 7 .
  • the actuating lever 16 (note FIGS. 2 and 4) is accommodated on a carrier 20 which, for its part, is supported on the bottom crossmember 19 of the first longitudinal folding device 31 .
  • the two former bars 1 which bound the former plate 2 , and effect the formation of an air cushion beneath the web supply 33 (note FIG. 3 ), run together into a former nose 24 , a first longitudinal fold being formed in a material web passing the first longitudinal folding device 31 , after the web has passed the former nose 24 .
  • the outlet volume 15 which is indicated by the arrows on the closure element 3 which extend transversely to the web travel direction 32 on both sides, is adjusted and matched to the corresponding width, respectively, of the web material 33 which is to be processed.
  • FIG. 1 Also illustrated in FIG. 1 is a handwheel 4 or similar manually actuatable device by which a spindle drive element 6 is rotatable.
  • the spindle drive element 6 cooperates with a spindle drive element 7 which extends vertically in the web travel direction 32 and has, on the underside thereof, the actuating lever 16 , which extends and retracts the cam 8 , which is not clearly shown in FIG. 1 .
  • a manually actuatable handwheel 4 it is also possible to accommodate, on the top crossmember 5 of the first longitudinal folding device 31 according to FIG.
  • an actuating drive for example, an electric motor, or some other drive, which allows the closure element 3 to be advanced into the engagement position thereof with the air-outlet openings 11 on the former plate 2 , which are to be closed, so as to be pre-set in accordance with the width of the material web which is to be processed.
  • FIG. 2 is a side elevational view of the former plate 2 , with a manually adjustable handwheel in the top region.
  • the handwheel serves for rotating the aforementioned spindle 6 , and acts upon a spindle drive element 7 , which is positioned perpendicularly to the spindle 6 and moves an actuating lever 16 back and forth, respectively, in the vertical direction, i.e., parallel to the web travel direction 32 .
  • Accommodated on the vertically displaceable actuating lever 16 is an actuating cam 8 which is movable into a retracted position and an extended position, respectively, and by which the closure element 3 is engageable with the rear side 26 of the former plate 2 .
  • the slot-like air-outlet openings 11 which are not shown in FIG.
  • the closure element 3 which may be formed, for example, as a bent sheet-metal profile, is mounted so as to be rotatable about a pivot pin 13 extending perpendicularly to the plane of the drawing in FIG. 2 .
  • Extending parallel to the former plate 2 are the former bars 1 , out of which a gaseous medium in the form of compressed air passes in the flow direction 25 on the upper side and underside, as viewed in FIG. 2, in order to build up an air cushion 17 beneath a material web which is to be conveyed over the former plate 2 . Due to the air cushion 17 , the underside of the material-web supply 33 which is to be conveyed is prevented from coming into contact both with the cylindrical lateral surfaces of the former bars 1 and with the planar surface 27 of the former plate 2 .
  • FIG. 2 shows a carrier 20 whereon a pivot pin 14 is accommodated.
  • the spindle drive element 7 which extends in the vertical direction parallel to the former plate 2 , is provided, in a bottom section thereof, with a threaded portion extending through the actuating lever 16 , which is formed of bronze, for example.
  • the actuating lever 16 moves vertically in the direction of the arrows 21 and 22 (note FIG. 4 )
  • the actuating lever 16 rotates about the pivot pin 14 , with the result that the cam 8 , which is arranged on the actuating lever 16 beneath the bottom end of the closure element 3 , is caused to execute a retraction and extension movement, respectively.
  • a former nose 24 is formed at the bottom end of the former plate 2 and/or the former bars 1 , with air jets likewise exiting from the former nose for the purpose of preventing contact between the material 33 running off in web form and the upper side of the former nose 24 .
  • FIG. 3 provides a diagrammatic view from above of the former plate 2 .
  • the former plate 2 is of material thickness and has an underside 26 and an upper side 27 . Illustrated in the central region between the former bars 1 , which bound the former plate 2 , is an opening 11 through which a volume of gaseous medium, which can be limited by the extent to which the former element 3 engages with the rear side 26 of the former plate 2 , can exit from the air volume 17 closed off between the web material 33 and the former plate 2 .
  • the air volume 17 beneath the web-like material 33 is produced by subjecting the former bars 1 , which extend parallel to the web travel direction 32 , to the action of compressed air.
  • the former bars 1 are provided, for example, with air-outlet openings 10 which, in the embodiment illustrated in FIG.
  • a gaseous medium in the form of compressed air exits from the air-outlet openings 10 of the former bars 1 and prevents the underside of the web-like material 33 from coming into contact with the lateral surfaces of the former bars 1 and the former plate 2 .
  • the air cushion 17 produced beneath the web-like material 33 is fed via the air jet 18 emerging from the former bars 1 .
  • the volume of air flowing out of the air cushion 17 is controlled by the engagement of the closure element 3 with the underside 26 of the former plate 2 .
  • FIG. 4 is an enlarged fragmentary view of FIG. 2 showing the actuating lever 16 together with the cam accommodated therein, in the retracted and extended positions, respectively.
  • the spindle drive element 7 extends parallel to the web travel direction 32 and parallel to the former plate 2 and the former bars 1 .
  • the latter is provided with a threaded section 28 .
  • the threaded section 28 is provided with two stops 29 , which may be configured, for example, as a pair of nuts which are screwed onto the threaded section 28 opposite one another and a pair of lock nuts, respectively. Between the stops 29 , the threaded section 28 of the spindle drive element 7 extends through a bushing on the actuating lever 16 .
  • the actuating lever 16 executes a vertical upward and a vertical downward movement, respectively, depending upon the direction of rotation. Because the actuating lever 16 can be rotated about a pivot pin 14 of the carrier 20 , a vertical upward movement or downward movement, respectively, of the actuating lever 16 , by rotating the threaded section 28 , causes the cam 8 , which is connected to the actuating lever 16 , to execute a retraction movement and an extension movement, respectively.
  • FIG. 5 is a front elevational view of FIG. 1 showing the first longitudinal folding device 31 in greater detail.
  • the former plate 2 has a substantially triangular configuration and is closed off by the former bars 1 , which form the lateral boundaries.
  • the upper crossmember 5 and the bottom crossmember 19 accommodating the carrier 20 for the actuating lever 16 together with the cam 8 accommodated thereon, extend transversely to the web travel direction 32 .
  • the former bars 1 which form the boundary of the former plate 2 , terminate in the former nose 24 .
  • the closure element 3 In the case of material webs having the width 23 . 2 , which may cover the entire former plate 2 , in order to avoid tearing the edges as a result of friction upon contact with the former plate 2 and the former bars 1 , respectively, the closure element 3 , during the processing of such webs, is adjusted about the pivot pin 13 thereof so that the closure element 3 closes to the greatest possible extent the first two slot-like openings 11 , as viewed in the web travel direction, with the result that the air volume flowing out of the air cushion 17 is kept small. This ensures that the smallest possible air volume will leave the air cushion 17 via the openings 11 , with the result that it is possible to produce and maintain a sufficiently dimensioned air cushion 17 beneath the material web 33 . This prevents the edge regions of a material web 33 of the format 23 . 2 from coming into contact with the lateral surfaces of the former bars 1 , and thus also prevents friction from causing the material web to tear and a consequent break in the web.
  • the closure element 3 extending in the web travel direction 32 is then moved away from the rear side 26 of the former plate 2 , when the hand wheel 4 is actuated via the spindles 6 and 7 , with the result that the air volume flowing out of the outlet openings 11 in the former plate 2 and leaving the air cushion 17 is at a maximum. Assurance is thereby provided that even a material web of a minimum web width 23 . 1 can be guided centrally in a contact-free manner over the first longitudinal folding device 31 without being damaged.
  • Air jets 18 which emerge from the circumferential surfaces of the former bars 1 taper triangularly in the direction towards the former nose 24 , and serve for feeding the air cushion 17 beneath the web material 33 . Outlet of the air jets 18 is also assured in the region of the former nose 24 of the first longitudinal folding device 31 .
  • the air-outlet openings 10 in the former bars 1 be configured at an angle of 90° to one another, it is also possible to provide for the series of air-outlet openings 10 on the former bars 1 to be at other angles to one another.
  • the angular position of the air-outlet openings 10 , as well as the diameter of the air-outlet openings 10 , respectively, are dimensioned so as to ensure the formation of an air cushion beneath the web material 33 to be conveyed, which avoids to a sufficient extent contact between the underside of the web material 33 and the stationary surfaces of the former bars 1 and the former plate 2 , the size of the air cushion 17 being predeterminable manually or automatically by the gradually closable and releasable closure element 3 which serves as a throttle element.

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  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Advancing Webs (AREA)
US09/897,282 2000-06-30 2001-07-02 Device for contact-free guidance of a web material over a surface Expired - Fee Related US6619583B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10031814 2000-06-30
DE10031814.2 2000-06-30
DE10031814A DE10031814A1 (de) 2000-06-30 2000-06-30 Einrichtung zum berührungsfreien Führen eines Bahnmaterials über eine Fläche

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Publication Number Publication Date
US20020017589A1 US20020017589A1 (en) 2002-02-14
US6619583B2 true US6619583B2 (en) 2003-09-16

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US (1) US6619583B2 (de)
EP (1) EP1167263A1 (de)
JP (1) JP2002053261A (de)
DE (1) DE10031814A1 (de)
FR (1) FR2810975B3 (de)

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US20060025295A1 (en) * 2002-10-19 2006-02-02 Johannes Boppel Former for a strip-producing or strip-processing machine
US20090218757A1 (en) * 2006-08-24 2009-09-03 Wintec Co., Ltd. Method of conveying sheet-shaped member and equipment for conveying the same
US20110064509A1 (en) * 2009-09-17 2011-03-17 Goss International Americas, Inc. Air delivery apparatus for delivering air to a moving substrate in a printing press

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DE102012201238B3 (de) 2012-01-30 2012-12-27 Koenig & Bauer Aktiengesellschaft Vorrichtung einer Rollenrotationsdruckmaschine zur Verarbeitung einer oder mehrerer bedruckter Bahnen sowie Verfahren zur Bildung eines längsgefalzten Stranges
CN103569776A (zh) * 2013-11-06 2014-02-12 北京印刷学院 一种折页三角板装置
CN110844682B (zh) * 2019-10-25 2020-12-25 桐城市华猫软膜有限公司 一种热收缩膜对折装置
DE102021103766A1 (de) 2021-02-17 2022-08-18 Manroland Goss Web Systems Gmbh Trichternase und Falztrichter

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US7314440B2 (en) 2002-10-19 2008-01-01 Koenig & Bauer Aktiengesellschaft Former for a strip-producing or strip-processing machine
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Also Published As

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EP1167263A1 (de) 2002-01-02
US20020017589A1 (en) 2002-02-14
FR2810975A1 (fr) 2002-01-04
JP2002053261A (ja) 2002-02-19
FR2810975B3 (fr) 2002-09-06
DE10031814A1 (de) 2002-01-10

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